# MN Strap Care Guide: How to Maintain Your Marine Nationale Watch Strap

**By Michael Seals** · 2026-07-26

# MN Strap Care Guide: How to Wash, Dry, and Maintain Your Marine Nationale Watch Strap

An MN strap (Marine Nationale strap) is built for water, sweat, and daily wear, but a little care keeps the elastic weave, color, and stitching looking strong for years. Here is our take on how to clean, dry, and store yours properly. Or at least as well as you prefer.

**Quick Answer** Hand wash your MN strap in cold water with a small amount of mild soap, rinse thoroughly, and air dry flat or hanging. Avoid the washing machine, dryer, and harsh detergents, they will certainly break down the elastic core and fade the stripe dye over time. Even just water is better than nothing.

## How to Clean an MN Strap

1.  **Remove the strap from your watch.** Pop out the spring bars so you're not scrubbing near your watch case or crown.
2.  **Wet the strap in cold water.** Warm or hot water can loosen the elastic weave and cause the stripe threads to bleed.
3.  **Apply a small amount of mild soap.** A drop of dish soap or a gentle detergent works. Avoid bleach, fabric softener, and enzyme-based stain removers, they will degrade the nylon and elastic fibers.
4.  **Gently scrub with a soft brush or your fingers.** An old toothbrush works well for the woven texture and along the edges near the hardware. Perhaps clean the toothbrush a little before using. \[insert shoulder shrug emoji\]
5.  **Rinse thoroughly.** Soap residue left in the weave can attract dirt faster and irritate skin on your next wear.
6.  **Squeeze out excess water, don't wring it.** Wringing stresses and can permanently kink the elastic core.
7.  **Air dry flat or hanging.** Lay the strap on a towel or hang it over a rail. Keep it out of direct sunlight and away from radiators or hair dryers, which can weaken the elastic and fade the color.

Most MN straps are fully dry within 1-2 hours thanks to the lightweight, breathable weave, one of the reasons the style was originally developed for military divers.

## What to Avoid

Do

Don't

Cold water

Hot water

Mild soap

Bleach or fabric softener

Air dry flat

Machine dry / direct heat

Soft brush

Stiff wire brush or abrasive scrubber

Store dry, loosely coiled

Store wet or tightly folded

## How Often Should You Wash It?

-   **Everyday wear:** every 2-3 weeks
-   **Gym, swimming, or heavy sweat use:** after every session, or at least weekly
-   **Light/occasional wear:** every 4-6 weeks, or as soon as it looks visibly dirty

Rinsing with plain water after ocean or pool swims, even without soap, helps prevent salt and chlorine buildup from stiffening the weave.

## Caring for the Hardware

![Freshly washed MN Watch Strap by Seals Watch Company in California](https://cdn.shopify.com/s/files/1/1004/4894/files/CADB693B-8D78-4FE5-AF12-93A3F3B97A4F_240x240.jpg?v=1785086934)

Brushed steel buckles and keepers on an MN strap don't need much maintenance, but salt water and chlorine can dull the finish over time. Wipe hardware dry after water exposure and avoid submerging it in soapy water for extended soaks, a quick rinse and dry is enough.

## Storage Tips

-   Store the strap dry, never damp, trapped moisture can lead to mildew odor over time.
-   Loosely coil it rather than folding sharply at the same crease repeatedly, which can weaken the weave at that point.
-   Keep it out of prolonged direct sunlight when not in use, since UV exposure fades the stripe color faster than normal wear.

## FAQ

Can I put an MN strap in the washing machine?

No. Machine washing and drying can stretch or damage the elastic core and fray the woven edges. Hand washing is strongly recommended.

Is it okay to swim or shower with an MN strap on?

Yes, MN straps are designed for water exposure and dry quickly. Just rinse with fresh water afterward if you've been in salt water or a chlorinated pool, to prevent buildup in the weave.

Why does my MN strap smell after workouts?

Sweat trapped in the tightly woven elastic can develop odor if the strap isn't washed regularly or dried fully before storage. Wash weekly during heavy use and always let it dry completely before wearing again.

Will washing fade the red or colored stripe?

Cold water and mild soap shouldn't cause noticeable fading. Hot water, bleach, and prolonged direct sunlight are the main causes of stripe fading over time.

How long does an MN strap last with proper care?

With regular hand washing and proper drying, a well-made MN strap typically lasts 1-3+ years of daily wear before the elastic begins to loosen.

Shop our no-pass MN straps, parachute elastic watch bands with brushed steel hardware, available in 20mm and 22mm.

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> Source: [Seals Watch Co](https://seals-watches.com/blogs/journal/mn-strap-care-guide)